Product category:
Process and OEM Valves
News Release from: Emerson Process Management - Fisher Valves | Subject: Fieldvue Digital Valve Controller
Edited by the Engineeringtalk Editorial
Team on 21 August 2001
Valve Controller just the job at waste
plant
At a waste incineration plant in Dudley, Emerson Performance Solutions saved money by installing a new Fisher valve in the turbine bypass line, fitted with a Fieldvue Digital Valve Controller
Household and commercial waste from 315,000 people in Dudley, West Midlands, is processed in a waste incineration plant This facility has the capacity to handle up to 90,000 tonnes of waste a year, and is operated by MES Environmental, on behalf of Dudley Waste Services
This article was originally published on Engineeringtalk on 5 Nov 2003 at 8.00am (UK)
Related stories
Digital valve controllers are a hit with Dow
Dow Chemical has used Fisher Fieldvue digital valve controllers to provide accurate valve control with minimal hysteresis in a polystyrene application.
Control valve handbook now available
The new Control Valve Handbook, now available from Fisher Controls and Regulators, is both a primary reference work and a textbook.
New digital level controller from Fisher Controls
The DLC3000, a new microprocessor based Digital Liquid Level Controller for use with displacer type sensors, has been announced by Fisher Controls.
A significant source of revenue for the plant is the sale of electricity, produced by a steam driven turbine.
When sold to the National Grid, revenue from this by-product is up to £6000 per day, as well as providing all on-site power requirements.
Soon after the plant was commissioned in 1999, problems developed with a 6" turbine bypass valve, which performed badly.
Failures of this valve caused total shutdown of the generation plant, on average six times a year.
Apart from the inconvenience, the 10 hour process to complete the "black" start process required after such a trip caused a significant loss of generation income, and when added to other costs associated with the start-up, the total cost of each valve failure event was over £6500.
In January 2001, Emerson Performance Solutions installed a new Fisher valve in the turbine bypass line, fitted with a Fieldvue Digital Valve Controller, at a total cost of £7500.
This new valve and controller combination is giving superior control and reliability, as well as allowing on-line diagnostics for this critical loop.
Only two days after the valve was fitted, the plant output was tripped by the National Grid, and the bypass valve worked perfectly - with no plant shutdown resulting.
Being able to maintain the turbine running saved the plant ?6500 immediately! MES were impressed by the performance and have already ordered replacements for three further valves, with a Fieldvue DVC5000 Controller on the critical boiler feed-water valve.
• Emerson Process Management - Fisher Valves: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
